De Niro has been among the most vocal and bluntest of Trump's critics, frequently excoriating the president

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This image released by the Tribeca Film Festival shows an image of Gilda Radner and Gene Wilder used in Lisa Dapolito’s documentary feature "Love Gilda," premiering Wednesday, at the 17th annual Tribeca Film Festival in New York. (Estate of Gilda Radner/Tribeca Film Festival via AP)

The 17th annual Tribeca Film Festival opened Wednesday with pugnacious political words from Robert De Niro and the tender opening-night premiere, "Love, Gilda," an intimate celebration of the beloved comedian and former "Saturday Night Live" star Gilda Radner.

Lisa D'Apolito's documentary opened the New York festival in a star-studded screening at New York's Beacon Theatre that drew generations of "SNL" cast members, including original member Laraine Newman and Tina Fey, who poignantly introduced the film. "SNL" creator Lorne Michaels, Chevy Chase and Billy Crystal also came to see D'Apolito's documentary, which closely follows Radner's meteoric rise, her struggles with eating disorders and depression and her tragically young death from cancer, through readings from Radner's personal diaries.

Speaking for herself and "SNL" castmates Amy Poehler, Maya Rudolph and Rachel Dratch, Fey said Radner — a frizzy-haired force of genuine and joyous comic spirit — made an indelible impression on their generation of female performers.

"She was so authentically herself and so regular, in so many ways," said Fey, breaking up. "She was who she was on the TV. We all saw that and were like: 'I want to do that, and it's possible.' It was an early example to me of how important representation is for everyone from every walk of life. Gilda was our equivalent of Michelle Obama."

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It was the second time in a handful of years that Tribeca turned to its fellow New York institution, "SNL," for opening night. In 2015, the documentary "Live From New York!" kicked off the festival. And it also came just days after De Niro, who co-founded Tribeca with his producing partner Jane Rosenthal, appeared on "SNL" as Special Counsel Robert Mueller in a sketch. Wednesday on the "Today" show, De Niro said he would like to reprise the part.

"I hope there's a couple where I interrogate him then I arrest him and then I escort him to jail," De Niro said, referring to President Donald Trump.

De Niro has been among the most vocal and bluntest of Trump's critics, frequently excoriating the president. He has, for example, previously said he'd like to punch Trump in the face. As the curtain went up on the 17th Tribeca, De Niro couldn't help using the festival's megawatt spotlight to direct his considerable ire at Trump.

At a kickoff luncheon for press, De Niro referred to Trump as "our Lowlife-in-Chief" and rejected what he referred to as the president's narrow definition of America.

"The country has had a bad year, and you — the press — have taken a lot of hits," De Niro told the reporters in attendance. "America is being run by a madman who wouldn't recognize the truth if it came inside a bucket of his beloved Colonel Sanders Fried Chicken."

Festival organizers said this year's Tribeca has been programmed with some of De Niro's fighting spirit.

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"In the face of this inhumanity, we stand definitely against the forces that are tearing our country apart from the inside," said Jane Rosenthal, also a founder of the festival. "We stand with Time's Up, Never Again and Black Lives Matter and underserved voices."

Some elements of this year's Tribeca, which runs through April 29, are pointedly political. The closing night selection is Liz Garbus' "The Fourth Estate," an upcoming Showtime documentary series that captures The New York Times reporting on Trump's first year in office. The Jay-Z produced series "Rest in Power: The Travyon Martin Story" documents the 2012 shooting of the 17-year-old in Florida.

The festival will also hold a daylong Time's Up event on April 28, featuring hours of conversations with the initiative advocating for gender equality. Of the festival's 99 features, 46 percent are directed by women, the most in Tribeca's history. Rosenthal has credited that percentage in part with the makeup of Tribeca Enterprises, which she said is 80 percent female.